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Concentrations of different biomarkers in the responder and non-responder groups: (A) amyloid Aβ1-42, (B) Aβ1-40, (C) total tau protein (t-tau), (D) phosphorylated tau protein (pT181) (expressed in pg/mL), and (E) Aβ1-42 /Aβ1-40 ratio in cerebrospinal fluid at time points: 0`– immediately after external lumbar drainage placement, after 36 hours, and after 72 hours of drainage; * significant difference.
